Transcriptional activator involved in the positive regulation of abscisic acid (ABA) responsive genes. Acts as a positive factor of ABA-mediated responses. Involved in the transcriptional activation of ABA-inducible genes in response to dehydration and osmotic stresses. Plays a positive role in both stomatal closure and water loss under dehydration stress conditions. Acts synergistically with ABF2 to activate the dehydration stress-response factor RD29A transcription. Binds to the consensus core cis-acting elements 5'-CGTA-3' and 5'-CACG-3' at the RD29A promoter (PubMed:24285786). Involved in hypocotyl graft union formation. Required for the auxin-mediated promotion of vascular tissue proliferation during hypocotyl graft attachment (PubMed:25182467). {ECO:0000269|PubMed:24285786, ECO:0000269|PubMed:25182467}.

UniProt

Transcription factor involved in tissue reunion of wounded inflorescence stems. Required for the division of pith cells in the reunion process, which is dependent on polar-transported auxin and the wound-inducible hormones ethylene and jasmonate (PubMed:21911380). Binds to the promoters of XTH19 and XTH20 to induce their expression via auxin signaling. XTH19 and XTH20 are involved in cell proliferation in the tissue reunion process of incised stems (PubMed:25182467). Involved in hypocotyl graft union formation. Required for the auxin- mediated promotion of vascular tissue proliferation during hypocotyl graft attachment (PubMed:27986917). {ECO:0000269|PubMed:21911380, ECO:0000269|PubMed:25182467, ECO:0000269|PubMed:27986917}.